US Patent: 1,644,326 - Portable motor-driven saw


	Home\| FAQ	Search:Advanced\|Person\|Company\| Type\|Class	Login


Quick search:	Patent number:	Patent Date:

US Patent: 1,644,326

Portable motor-driven saw

Patentee:

John Marshall Crowe (exact or similar names) - Kenton County, KY

USPTO Classifications:

30/373, 30/390

Tool Categories:

handheld power tools : handheld circular saws

Assignees:

Crowe Mfg. Corp. - Covington, KY

Manufacturer:

Ingersoll-Rand Co. - Jersey City, NJ

The Stanley Works - New Britain, CT

Crowe Mfg. Corp. - Covington, KY

Witnesses:

Unknown

Patent Dates:
Applied:	Apr. 02, 1924
Granted:	Oct. 04, 1927

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Ingersoll-Rand Co.
Vintage Machinery entry for Crowe Mfg. Corp.
Vintage Machinery entry for The Stanley Works

Description:

Subsequently improved in patent 1,780,174.

An example has been reported, labeled, "Stanley Safety Saw", and listing patent 1,830,350, patent 2,228,664 and patent 2,263,136. It was purchased in early 1947. This patent date was seen on a pneumatically-powered circular saw from Ingersoll-Rand Co.

The innovations in this patent are an improved arrangement of handles, an improved adjustable depth gauge, and an improved blade guard and lock.